AIRPLANE FACTORY INC· ICAO24 a922ad· last seen 2d ago

N688TW is a Sling TSi, a single-engine piston aircraft operated by AIRPLANE FACTORY INC. SkyMeter has tracked 588 flights totalling 762 hours of airtime via ADS-B. The most frequent segment is KTOA to KTOA. Service window in our records spans 484 days. Of those flights, 72 (12.2%) carry at least one detected incident: a go-around, unstable approach, stall warning, or runway excursion. The Sling TSi has a maximum takeoff weight of 2,050 lb.

About the Sling TSi

The Sling 4 is a South African-designed four-seat light aircraft that has carved out a distinctive niche in the experimental and kit-built market since its introduction in 2013. Manufactured by The Airplane Factory (TAF) in Johannesburg and marketed globally by Sling Aircraft, it represents one of the few modern all-metal kit planes optimized for both amateur construction and factory-built Light Sport or Experimental certification. Powered by a 115-horsepower Rotax 914 turbocharged engine, the Sling 4 delivers respectable cruise speeds around 140 knots while maintaining docile low-speed handling characteristics with a stall speed under 50 knots in landing configuration.

The aircraft's aluminum construction and relatively spacious cabin have made it popular among builders seeking a capable cross-country tourer that can be assembled in a home workshop, typically requiring 1,200 to 1,500 hours of build time. Its high-wing predecessor, the Sling 2, established the brand's reputation for straightforward construction and good flying qualities, but the Sling 4's low-wing configuration and four-seat capacity opened the design to family and small-group travel missions. The type has gained particular traction in the United States experimental market, where its combination of modern avionics compatibility, fuel efficiency, and relatively affordable kit pricing appeals to owner-builders.

SkyMeter has tracked flights across airframes and operators, with the largest observed operator.

✈
FLIGHTS
588
all time
⏱
FLOWN HOURS
762
tracked time
📍
AIRPORTS VISITED
89
unique
📡
CALLSIGNS
1
148 routes
📅
SERVICE PERIOD
5/27/2025 → 9/24/2026
first → last
⚠
INCIDENT RATE
12.2%
72 flagged

Top routes

By flight count

10
18
17
16
13
11
10
7
6
6
6

Flight numbers

Most-flown by this airframe

1

Aircraft specifications

Sling TSi

Engines
Single Piston
Vref (approach)
60 kt
MTOW
2,050 lb
Wake category
Light

Recent flights

Newest 50 operations of N688TW

50
9/24/2026
35m
No alerts
9/24/2026
41m
No alerts
9/19/2026
23m
No alerts
9/19/2026
25m
No alerts
9/19/2026
16m
No alerts
9/18/2026
19m
No alerts
7/15/2026
20m
No alerts
7/14/2026
17m
△ Low approach-stability score
7/14/2026
22m
No alerts
7/14/2026
38m
No alerts
7/13/2026
10h 5m
No alerts
7/12/2026
3h 21m
No alerts
7/12/2026
2h 11m
No alerts
7/11/2026
1h 55m
No alerts
7/8/2026
10h 37m
No alerts
7/6/2026
1h 27m
No alerts
7/6/2026
1h 21m
No alerts
7/6/2026
1h 24m
No alerts
7/6/2026
1h 8m
No alerts
7/5/2026
4h 26m
No alerts
7/2/2026
5m
No alerts
6/28/2026
5m
No alerts
6/26/2026
54m
No alerts
6/24/2026
11h 6m
No alerts
6/21/2026
1h 3m
No alerts
6/21/2026
49m
No alerts
6/16/2026
47m
No alerts
6/13/2026
13h 56m
No alerts
6/8/2026
40m
No alerts
6/6/2026
5h 30m
No alerts
6/6/2026
47m
No alerts
6/5/2026
8h 9m
No alerts
6/5/2026
10h 53m
No alerts
5/30/2026
16m
No alerts
5/26/2026
2h 8m
No alerts
5/25/2026
2h 5m
No alerts
5/23/2026
2h 35m
No alerts
5/21/2026
38m
No alerts
5/21/2026
2h 15m
△ Low approach-stability score
5/21/2026
8m
No alerts
4/18/2026
20m
No alerts
4/18/2026
17m
No alerts
4/6/2026
20m
△ Low approach-stability score
4/6/2026
2h 22m
△ Low approach-stability score
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